The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2008
Filed:
Jul. 23, 2003
Kohshiro Inomata, Shinjuku-ku, JP;
Katsuya Mitsutake, Shinjuku-ku, JP;
Kohshiro Inomata, Shinjuku-ku, JP;
Katsuya Mitsutake, Shinjuku-ku, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
To reduce processing load or processing time required for compression and encryption of data. Data to be compressed, such as image data, is divided into specified block sizes by am image divider (). A quantizer () references a quantization table () to quantize each of these blocks of data. The result of this quantization is entropy encoded by an entropy encoder () referencing a coding table () to acquire compressed data. An encryptor () encrypts the quantization table () and coding table () used in the quantization and encoding using a specified encryption method. A multiplexor () gathers together the encrypted data acquired as a result together with the compressed data in a specified format.